They are also used in the production of electrolytic cells for the production of aluminum and other metals. They are also widely used in photovoltaics and can be used as flexible substrates for solar cells, back electrode materials, photovoltaic bracket materials, etc.

Graphite block is made from a mixture of high-quality petroleum coke, needle coke and coal tar pitch. The raw materials are crushed and ground into a fine powder, then mixed with coal tar pitch and formed into blocks using a molding process.

The blocks are then baked at high temperatures to carbonize the coal tar pitch and convert the raw material into graphite. The resulting graphite block is then machined to the required size and treated with a special coating to improve its electrical conductivity and resistance to oxidation.